The distance to NGC 6822 from infrared photometry of Cepheids

Details The distance to NGC 6822 from infrared photometry of Cepheids The distance to NGC 6822 from infrared photometry of Cepheids

Oct 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...273..539m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 273, Oct. 15, 1983, p. 539-543. Research supported by the Natural Sciences

Astronomy and Astrophysics

Astronomy

77

Astrometry, Astronomical Photometry, Cepheid Variables, Distance, Galaxies, Infrared Astronomy, Infrared Photometry, Near Infrared Radiation, Stellar Luminosity

Scientific paper

H band observations have been obtained for nine Cepheids in the Local Group galaxy NGC 6822. The near-infrared period-luminosity relation is almost identical to those for the Magellanic Clouds and the Galaxy. Comparison with a calibration of the period-luminosity relation for these three galaxies yields a true distance modulus of within 0.11 mag of 23.47 mag, for E(B - V) = 0.36 mag. Several Cepheids in NGC 6822 seem to be affected by reddening internal to the galaxy.

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